<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>功能开发中</title>
    <style>
        body {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            background: #f5f6fa;
            font-family: 'Segoe UI', 'Arial', sans-serif;
        }
        .msg {
            font-size: 2rem;
            color: #888;
        }
    </style>
</head>
<body>
    <div class="msg">流水大屏</div>
</body>
</html>